Secure Digital Card Specification Sheet
S
S
S
D
D
D
8
8
8
0
0
0
s
s
s
e
e
e
r
r
r
i
i
i
e
e
e
s
s
s
128MB~2GB SD80 Cards
Transcend Information Inc.
7
• Bus Timing (High Speed Mode)
Parameter Symbol Min Max. Unit Remark
Clock CLK (All values are referred to min (V
IH
) and max (V
IL
)
Clock frequency Data Transfer Mode f
PP
0 50 MHz
Clock low time t
WL
7 ns
Clock high time t
WH
7 ns
Clock rise time t
TLH
3 ns
Clock fall time t
THL
3 ns
Inputs CMD, DAT (referenced to CLK)
Input set-up time t
ISU
6 ns
Input hold time t
IH
2 ns
Outputs CMD, DAT (referenced to CLK)